The Valley of Ends

Salys nods at the question about the library, "It might also be a good place to look up more about these undead cultists."

"I wouldn't say the library here in the city is of note. If you mean the Great Library, that's a strange and bizarre external factionfor sure. They trade in information. We used our connection to collect what we can get from them about Oblex. I believe what we know about Oblex has been shared already,"  She explains, "As for the undead cult, I can share what information we have on them as you are stake in this as well," She pulls some spare sheets and writes on them as she refers to the large desk size book after flipping through it. She hands over the sheets, "You'll need hire a scout to get to those locations however. Scouts are individuals who can travel to locations without a compass and not get lost. They often work as guide for adventurers,"

Notes:
3 Locations near Eastcliffe. There directions, landmarks and several sets of numbers next to each location.
Several other locations near other Legion cities. 

Del looks over the halfling, realizing that anyone could be the oblex

(not sure what I’d roll for that. Nature? 15 )

Del remembers from information passed on to himself from the Tiefling and others, there are signs of an Oblex, a faint smell of sulfur, a red line connecting the copy to the main body of the Oblex like an angular fish. Main body of an Oblex remains a red mass of slime. At the moment, Del can not detect even a hint of sulfur and sees no teether. 

Once we finished here with the Halfling, i would like to search the city, more of the poorer parts if i can find any gossip about rotten eggs or sulphur small somewhere.

 I'll try to explain as clear as I can. Two rolls per set of checks max if there's more than just one doing it. If two or more are investigating (not the skill) the city, one can give advantage for the one doing the rolls. Can also apply abilities/features you think will assist in the rolls. 

First Set: 
Persuasion if you want to be nice about it, intimidation if you want to be aggressive about it.  

Second Set: 
Insight, checking for lies and deception.

Third Set: 
Investigation, checking for signs of trouble where you know to look for it. 

I/Onyx would go for Set #2:

one roll per person, correct?

All three sets are needed to investigate the city. need a roll for each.

Gotch will help with whichever of the checks people are doing. he would not be good at any of those checks after all.

Del will help with the persuading

Insight check with help from Gotch: 21

Anyone can roll for any of them. All three sets just need to be done, can be one person rolling everything or a mix of people. I'll just take first two for each set. be with advantage or two people. 

Set #1 - Asking around - 21 - Resfaen - Persuasion
Set #2 - degerming what people are saying and not saying -24 - Onyx with Gotch's help
Set #3 - checking out the sites - ? - Who?

Resfaen with the help from Del would work her way around town talking to the townsfolk hoping to gather what information she can.

Persuasion: 14

Rogi's no good with investigation but can Help someone else and can also contribute Guidance bonus.

Salys can investigate with help and guidance from Rogi.

Investigation: 25+3

Resfaen starts around the city for the strange, the abnormal, the surreal with many people she question are very responsive to her. Meanwhile Onyx keeps an eye on the questioned and the few who refused to answer her questions.

 From these questions. they're directed to area of the city, not exactly poor but rundown part of town that believed to have been an more industrial area when the city came to the valley (shooting stars can bring entire empty cities to the Valley). There are rumors, contested by the guards, of ghosts, ghouls and spirits haunting the area. Even talk about the "House", a house with a hag within. 

Closer to the area upon questioning, Onyx notices more liars or at least people not telling everything or people avoiding them with varying level of subtlety. Visiting the area themselves, it's a bare bones part of the city with many of structure been stripped in metal. The more perceptive sees a few shadow of people darting in and out. Salys investigates closer at points, moving debris out of the way where he finds what looks like twigs tied up into a figures around. He looks at what he thinks a sign of a Oblex could leave traces behind but none.

The group realized after a bit, the sun setting and it's getting dark and they seem to be going in circle in the area. What does the party do?

"Good chance the thing never even came here." Gotch mentions to the others. "We just keep going in circles, but aren't getting any closer."

On the mention that a "Hag" might be living in a house, Resfaen would every now and then do a Divine Sense to see if she can sense anything. Near any particular structure or intersection that seemed to be a hub of sorts.

"Something is happening here but I am not sure what and can't quite put my finger on it. Did anyone see any taverns or gathering places when we were walking through the area. We might want to see what happens in the middle of the night in the area. Maybe make it known we are leaving and then sneak back into the area a different way." She suggests.

Perception: 22

Those twig figures, do they resemble the ones we saw near the hag house in the forrest?

Salys looks to the others at the mention of the hag, "There are hags where I come from, but they live on the other side of the continent surrounded by monsters and I know next to nothing about them except that they can be powerful and deadly. Are they a threat to us or the townsfolk?"